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1931 articles for “3-acetyl-7-bromo-2H-chromen-2-one” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Studies on Development of a Super Adsorbent Polymer for the Removal of Nitrogenous Waste Products from Urine Samples and in Intestinal Fluid Simulator
Abstract: Introduction: Colonic dialysis (CD) has been proposed as an appropriate candidate for excretion of electrolytes, nitrogen waste products and excessive fluid using gastrointestinal (GI) tract. Methods: The GI environment simulated in terms of concentrations of nitrogenous waste products, electrolytes, temperature and pressure. In addition, 24-hour urine samples were obtained from 10 healthy adult volunteers. Adsorbing capacity of Super Adsorbent Polymer (SAP) evaluated in GI tract simulating system and urine samples. …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 1–7 Read article
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Investigation of the Effects of Solpawa SBR-X TM Doses on Total Petroleum Hydrocarbon in Loam Soil at Different Depths
Abstract: Laboratory trials of environmental remediation products bring the hope of inventing such products to reality for many of today’s intractable environmental pollution conditions, paving the way for the field trials and subsequent large-scale field application. This laboratory study was conducted as the first phase of a 2-tiered adaptive trials of Solpawa® Bioremediation System (Solpawa-SBX) funded by the Nigerian Content Development and Monitoring Board (NCDMB). The study investigated the effectiveness of …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 64–72 Read article
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Experimental and Modeling Study of Companion Flange
Abstract: Performance of flange is characterized by its strength. A number of analytical and experimental studies have been conducted to study this characteristic of flange in pipeline under internal pressure loading. Very few researchers have studied the companion flange which is used in assembly of Universal Drive shaft. A companion flanges can be supplied as an individual component or as assemblies with universal drive shafts. It allows connection of a flange …
Published in Journal of Production Research & Management · Vol. 8, Issue 1, 2018 · pp. 29–36 Read article
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Firm Specific Determinants of Profitability of SSE in Bahir Dar, Ethiopia
Abstract: Poverty and unemployment are critical issues that Ethiopia is struggling to combat through the injection of Small Scale Enterprises (SSE). There has been a growing awareness that SSEs are important for economic growth for both developing and developed countries. They are seen as the engines of employment, alleviating poverty and improving equality. SSE development was identified as a priority in creating jobs with the intention of addressing unemployment and poverty …
Published in Journal of Production Research & Management · Vol. 7, Issue 1, 2017 · pp. 26–35 Read article
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Reddish-orange Emission in Pr3+-V4+ Doped Ions in Calcium Lead Borosilicate Glasses for Photonics and Sensor Applications
Abstract: CaO-PbO-B2O3-SiO2:Pr2O3-V2O5 synthetic glasses were made using a traditional melt-quench method. In the UV-vis-NIR range, the optical absorption spectra show distinct transitions from different energy levels where simple Pr3+ ions are present. The absorption transition of V4+ ion identity exhibit 2T2g®2E2g (spin-allowed) single transition in the UV-vis region Because of the presence of the paramagnetic VO2+ ion, the EPR spectra showed high intensity hyperfine splitting of two sets of eight lines …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 3, 2024 · pp. 33–50 Read article
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Strength Evaluation of Uniaxial Loaded Rectangular Confined RC Column under Static Load
Abstract: AbstractIS 456:2000 provides the guideline for RC column design and IS 13920:2016 provides the guideline for ductile design and detailing of RC columns to be provided in buildings to be constructed in seismic zones. The confining steel is provided to achieve the desired ductility in RC columns. The constitutive law under monotonic axial compression is proposed by researchers for confined concrete. It gives larger stress and strain values compared to …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 3, 2017 · pp. 7–12 Read article
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Building Behaviour on Sloping Ground With & Without Diaphragm: Earthquake Zone-IV
Abstract: The period 1996 to 2015, 7,056 disasters recorded worldwide. 1.35 million People killed by natural hazards over the past 20 years, more than half died in earthquakes. The poorest nations paid the highest price in terms of the numbers killed per disaster and per 1,300,000 populations. Earthquake load is major effect on buildings especially on sloping grounds. Earthquake zone-IV is twice times more dangerous compare with zone-III. In the present …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 2, 2020 · pp. 47–55 Read article
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ENGINEERING ASSESSMENT OF WATER TREATMENT METHODS FOR PUBLIC HEALTH IN OGUN STATE, SOUTH-WESTERN NIGERIA
Abstract: Water and sanitation are important determinant of public health and there is a need to evaluate it. Method used was a descriptive qualitative assessment of sanitation and water handling practices in some rural areas of Ogun State Nigeria was conducted. Results: The results obtained showed that about 30% do not have toilet facility while 55.6% had pit latrine. Only 20.8% had a closed dustbin, open dustbin (37.2%) while 42.0% had …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 8–16 Read article
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Flood Analysis Using Integrated HEC-RAS and GIS: A Case Study of Nashik city, India
Abstract: The developmental activities in the urban areas are severely affecting the river flow pattern of the rivers; especially the rivers which pass through the urban habitation are causing heavy floods. The effect of encroachment in the city limits due to urbanization reduces the flow path of rivers causing flooding in adjacent areas. The available data indicates that causalities due to increased frequency of occurrence of flood have increased from 1000 …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 15–24 Read article
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An Ultra Wideband Hexagonal Patch Antenna with Enhanced Bandwidth
Abstract: A microstrip line feed Ultra-Wideband (UWB - 3.1 to 10.6 GHz) hexagonal patch antenna with enhanced bandwidth was presented in this article. The enhancement of bandwidth (BW) is achieved by defecting the partial ground structure. The antenna is designed by FR-4 substrate with εr(dielectric constant) = 4.3 & Tan δ (loss tangent) = 0.025.Initially, a conventional hexagonal patch with a partial ground plane produces a – 10 dB bandwidth of …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 1, 2022 · pp. 11–20 Read article
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Autonomous Utility Bot with Self Balancing and Obstacle Avoidance
Abstract: Over the last decade, there has been a surge in global interest in two-wheeled self-balancing robot research. The kinematics model of a two-wheeled self-balancing autonomous mobile robot is described in this paper. After the mechatronics system design for the robot is completed, the analysis of the entire kinematics model can be divided into two wheels and a body. The velocity decompositions of the robot wheel and body are then examined. …
Published in Recent Trends in Sensor Research & Technology · Vol. 9, Issue 2, 2022 · pp. 18–24 Read article
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Weight Calculation of Forging Die Design for Gear Blank
Abstract: Forging is one of the most adopted manufacturing processes, in which raw material is plastically deformed in to desired shape and size of component. The majority of the crucial load bearing structure component as well as safety critical items are processed through forging process. This is mainly due to the strength and dimensional accuracy of component can be achieved in forging process. Faster production of complex shapes with the less …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 53–58 Read article
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The Role of the Mechanical Engineers in Fighting Against COVID-19
Abstract: Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratorysyndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, inDecember 2019. The disease has since spread worldwide, leading to an ongoing pandemic. Symptomsof COVID-19 are variable, but often include fever, cough, headache, fatigue, breathing difficulties,and loss of smell and taste. COVID-19 pandemic dramatically changed the world, obligating allscientific disciplines to be adapted to the …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 1–9 Read article
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Comparative Evaluation of Tin Perovskite based Solar Cell
Abstract: AbstractPerovskite material utilized in manufacturing solar cells as active layer has altogether improved their effectiveness for power change. They possess conversion efficiency impressively more than the traditional technologies, for example, silicon based cells. They likewise have PCE more than the DSSC. They are accounted for to have conversion efficiency of about 20%. There has been a great increment in the estimation of PCE of these cells utilizing Perovskite as active …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 15–18 Read article
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Influence of Polymer Additives on Physical Properties of Asphalt Concrete under Marshal, Flexure and Compressive Stresses
Abstract: AbstractThe polymer modified asphalt cement is used today to reduce early pavement distress and extend service life by enhancing adhesion, cohesion, and elasticity. This work studies the impact of polymer additives (SBS, LDPE, and rubber) to asphalt cement on the physical properties of asphalt concrete subjected to compression and flexure stresses, and Marshal volumetric properties. Asphalt concrete cylindrical specimens of 101.6 mm diameter and 127 mm height for compressive strength …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 3, 2017 · pp. 8–17 Read article
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Influence of Microcrack Healing on Interface Bond Shear Strength of Asphalt Concrete
Abstract: The flexible pavement layers are susceptible to cracks throughout its service life under the repeated loading and environmental impact. However, microcracks can heal itself through rest period and variation in temperature. In this investigation, the influence of microcrack healing on the interface shear strength of asphalt concrete was assessed. Two types of tack coat (rapid curing cutback RC-70 and cationic medium setting emulsion CMS) and three application rates have been …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 18–28 Read article
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Compact Microstrip Patch Antenna Using Metamaterials To Perform As Narrow Band LTE Receiver Antenna
Abstract: This paper presents the review of various stages of development for improving the parameters of microstrip patch antenna. The main focus of paper is on metamaterials as this material is used to extend the capability of microstrip patch antenna and ultimately antenna can be improved for its utilization in different applications which were not earlier due to limitations of simple microstrip patch antenna. This paper also presented design of compact …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 24–29 Read article
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Ultra-Wideband Monopole Microstrip Filtenna with Hairpin Structure for Wireless Application
Abstract: Microstrip filtenna for WiMax/LTE and WLAN band has been proposed and presented. This paper presents design of bandpass filter having hairpin structure which is incorporated into the feedline. The FR4 substrate is used for the proposed antenna. The proposed filtenna has been designed and investigated using HFSS simulator. The proposed filtenna operates at 3.2 GHz. From the simulation results, it is extracted that passband of hairpin filter structure is from …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 25–29 Read article
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Solar Powered Automatic Turmeric Planting Machine
Abstract: AbstractRenewable energy and farming are a winning combination. Agriculture plays an important role in the life of economy. Among various crops, turmeric plays a major role. During manual planting, the labour has to dig the soil. In current technology, semi-automatic machine is used which leads to air and noise pollution due to emission of greenhouse gases. The main intention of this project is to develop a solar powered fully automatic …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 2, 2019 · pp. 23–29 Read article
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Homeopathic Management of Molluscum Contagiosum: A Case Report
Abstract: Molluscum contagiosum (MC) is a contagious poxvirus infection of the skin. It presents as single or multiple flesh-coloured, smooth, dome-shaped painless papules that typically have a central umbilication [1, 2]. Molluscum contagiosum virus (MCV) is transmitted through autoinoculation or to other individuals through physical contact or fomite. Thus, lesions that appear in localized area of the skin may spread to other regions of the body such as genital, perineal, pubic, …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 7, Issue 2, 2018 · pp. 26–30 Read article